Abstract
At 32°C, the apparent molal volume (v), apparent molal compressibility (k), relative association (RA), and solvation number (Sn) of substituted 2-oxo-2-H-chromene-3-carbohydrazide derivatives in 60% DMF-water were measured. The data is used to determine the interaction that is taking place in the solution. The ultrasonic technique is used to determine the interaction of a solute and a solvent. The variation of factors in binary mixtures with different concentrations indicates a significant interaction between solute and solvent molecules, associative molecular interaction, and ion-solvent interaction.
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